Biomechanical Changes During Menstrual Cycle

Biomechanical Changes in Young Women During Menstrual Cycle

The aim of the work is to assess the effect of the menstrual cycle on the biomechanical properties of the muscles. The study will be conducted among young women aged 20-25 with a regular menstrual cycle. During the test, muscle strength and muscle flexibility as well as activation times will be performed. The study will assess the effect of the stretching of the hamstring muscles on the biomechanical properties of the muscles in the different phases of the menstrual cycle.

Study Overview

• Status: Unknown
• Conditions: Menstrual Cycle; Passive Stretching; Hamstring Muscles
• Intervention / Treatment: Procedure: Static stretching

• Study Type: Interventional
• Enrollment (Anticipated): 500
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Poland
  • Śląskie
    • Katowice, Śląskie, Poland, 40-752
      • Recruiting
      • Department of Kinesitherapy and Special Methods, SHS in Katowice, Medical University of Silesia, Katowice, Poland

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 20 years to 26 years (Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: Female

Description

Inclusion Criteria:

• Regular menstrual cycle lasting 28 days (+/- 5 days)
• A menstrual cycle that has been present for at least 2 years
• No hormonal contraception
• Lack of pain in the lower spine
• No restriction of mobility in the hip joint

Exclusion Criteria:

• Irregular menstrual cycle
• BMI value below 18.5 and above 25
• Orthopedic disorders in the lower limb
• Neurological disorders
• Normal flexibility of the hamstring muscles

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Basic Science
• Allocation: N/A
• Interventional Model: Single Group Assignment
• Masking: None (Open Label)

Number of Arms

1

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Young women during various of phases of menstrual cycle.; The group of 40 young women will have their hamstring muscle stretched in different phases of the menstrual cycle: follicular, ovulatory and luteal. Static stretching will last 3x 45 seconds with a 15 second break between repetitions. Before and after the intervention a series of tests will be performed.	Procedure: Static stretching; Static stretching lasting 3 x 45 seconds will be performed in each of the examined women three times in different phases of the menstrual cycle: follicular, ovulatory and luteal. Before and after the intervention, a series of tests assessing the influence of stretching on biomechanical parameters will be carried out

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Hamstring flexibility	Hamstring flexibility will be assessed using AKE and PKE and SLR tests.	Change measured before and immediately after static stretching during follicular phase of menstrual cycle
Hamstring flexibility	Hamstring flexibility will be assessed using AKE and PKE and SLR tests.	Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Hamstring flexibility	Hamstring flexibility will be assessed using AKE and PKE and SLR tests.	Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Passive Hamstring flexibility	Hamstring flexibility will be assessed using PKE test	Change measured before and immediately after static stretching during follicular phase of menstrual cycle
Passive Hamstring flexibility	Hamstring flexibility will be assessed using PKE test	Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Passive Hamstring flexibility	Hamstring flexibility will be assessed using PKE test	Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Active Hamstring flexibility	Hamstring flexibility will be assessed using SLR tests.	Change measured before and immediately after static stretching during follicular phase of menstrual cycle
Active Hamstring flexibility	Hamstring flexibility will be assessed using SLR tests.	Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Active Hamstring flexibility	Hamstring flexibility will be assessed using SLR tests.	Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Hamstring passive stifness	Hamstring stiffness will be assessed using TDK test. During the test the resistance of the elongated Hamstring muscle is measured. If the resistance value is smaller after the intervention it means that muscle stiffness changed.	Change measured before and immediately after static stretching during follicular phase of menstrual cycle
Hamstring passive stifness	Hamstring stiffness will be assessed using TDK test. During the test the resistance of the elongated Hamstring muscle is measured. If the resistance value is smaller after the intervention it means that muscle stiffness changed.	Change measured before and immediately after static stretching during ovulation phase of menstrual cycle
Hamstring passive stifness	Hamstring stiffness will be assessed using TDK test. During the test the resistance of the elongated Hamstring muscle is measured. If the resistance value is smaller after the intervention it means that muscle stiffness changed.	Change measured before and immediately after static stretching during luteal phase of menstrual cycle
Trunk acivity is assessed using Stabilizer Pressure Biofeedback	The torso activation scheme is measured during lower and upper limb motions using Chattanooga Stabilizer Pressure Biofeedback.	Three repetitions with a 30-second break between. The measure is taken during follicular phase of menstrual cycle
Trunk acivity is assessed using Stabilizer Pressure Biofeedback	The torso activation scheme is measured during lower and upper limb motions using Chattanooga Stabilizer Pressure Biofeedback.	Three repetitions with a 30-second break between. The measure is taken during ovulation phase of menstrual cycle
Trunk acivity is assessed using Stabilizer Pressure Biofeedback	The torso activation scheme is measured during lower and upper limb motions using Chattanooga Stabilizer Pressure Biofeedback.	Three repetitions with a 30-second break between. The measure is taken during luteal phase of menstrual cycle
Hamstring strength is tested using the Micro Fet Handheld Dynamometer.	Muscle strength of hamstring is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.	Change measured before and immediately after static stretching. The measure is taken during follicular phase of menstrual cycle
Hamstring strength is tested using the Micro Fet Handheld Dynamometer.	Muscle strength of hamstring is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.	Change measured before and immediately after static stretching. The measure is taken during ovulation phase of menstrual cycle
Hamstring strength is tested using the Micro Fet Handheld Dynamometer.	Muscle strength of hamstring is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.	Change measured before and immediately after static stretching. The measure is taken during luteal phase of menstrual cycle
Strength of arm flexors and extensors and hip flexors is tested using the Micro Fet Handheld Dynamometer.	Muscle strength of arm flexors and extensors and hip flexors is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.	Three repetitions for 5-7 seconds with two 30-second intervals . The measure is taken during follicular phase of menstrual cycle
Strength of arm flexors and extensors and hip flexors is tested using the Micro Fet Handheld Dynamometer.	Muscle strength of arm flexors and extensors and hip flexors is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.	Three repetitions for 5-7 seconds with two 30-second intervals . The measure is taken during ovulation phase of menstrual cycle
Strength of arm flexors and extensors and hip flexors is tested using the Micro Fet Handheld Dynamometer.	Muscle strength of arm flexors and extensors and hip flexors is tested. Three repetitions of muscle strength testing are performed with two 30-second intervals. The participants are asked to press against the Dynamometer with the maximum effort for 5-7 seconds.	Three repetitions for 5-7 seconds with two 30-second intervals . The measure is taken during luteal phase of menstrual cycle

Collaborators and Investigators

• Sponsor: Medical University of Silesia
• Investigators: Study Chair: Magdalena Dąbrowska-Galas, Department of Kinesitherapy and Special Methods, SHS in Katowice, Medical University of Silesia

Study record dates

Study Major Dates

• Study Start (Actual): August 1, 2018
• Primary Completion (Anticipated): May 1, 2021
• Study Completion (Anticipated): November 1, 2021

Study Registration Dates

• First Submitted: February 13, 2019
• First Submitted That Met QC Criteria: June 6, 2019
• First Posted (Actual): June 7, 2019

Study Record Updates

• Last Update Posted (Actual): December 2, 2020
• Last Update Submitted That Met QC Criteria: December 1, 2020
• Last Verified: December 1, 2020

More Information

Terms related to this study

• Other Study ID Numbers: stretching w cyklu

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: No
• IPD Plan Description: The datasets used and/or analysed during the current study will be available from the corresponding author on reasonable request.

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No